Specifications

ManualsBrandsMakita ManualsLawn and GardenEM2650LH

PRODUCT

P 1/ 14

Models No.

Description

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

Optional accessories

EM2650UH/ EM2650LH,

EM2651UH/ EM2651LH

Petrol Brushcutter

Fuel tank capacity: L (oz)

Engine

Displacement: mL (cu.in.)

Fuel

Specifications

EM2650LH

Model

Type

Starting system

Loop handleHandle style

Engine oil

Carburetor

These four 25.4mL Petrol Brushcutters have been developed as

the successor models of

EBH252U/EBH252L and EBH253U/EBH253L

equipped with 24.5mL 4-stroke engine.

Their main feature is the multi-position engine lubrication system.

This unique system enables the engine to be inclined to any angle

even during continuous operation with no emission of white smoke

and smell of burning engine oil for wider application range of the

brushcutters.

EM2651UH and EM2651LH additionally feature rapid start.

EM2650UH and EM2651UH are Bike handle models.

EM2650LH and EM2651LH are Loop handle models.

Net weight*4: kg (lbs) 5.1 (11.2)

*1 Brazil: 25E gasoline

*2 No load speed of the cutting tool

*3 Of asymmetrical design

*4 Dry weight, without universal guard, cutting tool and shoulder harness

Note: The standard equipment for the tool shown above may vary by country.

Cutting tool ......................................................................................... 1

Universal guard (=Protector)

............................................................. 1

Shoulder harness with double shoulder straps ................................... 1 (for EM2650UH, EM2651UH)

Shoulder harness with single shoulder strap ...................................... 1 (for EM2650LH, EM2651LH)

Socket wrench .................................................................................... 1

Hex wrench (for M4) ......................................................................... 1

Hex wrench (for M5) ......................................................................... 1

Wire clamp (for tying cables) ............................................................. 2 (for EM2650UH)

Oil bottle without oil or Oil bottle containing 80mL engine oil ......... 1

Accessory bag .................................................................................... 1

Metal blades [230mm (9") 3-tooth, 4-tooth, 8-tooth], Nylon cutting heads [Ultra auto 4, Bump & feed 4,

Bump & feed Z5], Gardening attachments (for EM2650LH, EM2651LH)

620 (24-3/8) 330 (13)

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 1,765 (69-1/2)

474 (18-5/8) 264 (10-3/8)

EM2650UH

EM2651UH

EM2650LH

EM2651LH

Rapid start

EM2650UH EM2651LHEM2651UH

Bike handle

*3 Loop handleBike handle*3

5.5 (12.1) 5.2 (11.4)5.6 (12.3)

6,6307370 6,6307370

Straight unleaded gasoline

0.6 (20.3)

25.4 (1.5)

Max. output: kW

Max. torque: N.m

1.1 [at 5,500 min-1]

0.77 [at 7,000 min-

4-stroke

Recoil starter, with mechanical decompression

SAE10W-30 oil

in the Class SF or higher of API Classification

Diaphragm

Spindle thread size

Primer pump Yes

Clutch Yes

M10, Left-handed

Yes YesNo No

NoNo NoYes

No load speed

*2: min.-1 = rpm

Waist cushion

Model No.

ECHNICAL INFORMATION

EM2650UH

EM2651UH

EM2650LH

EM2651LH

Summary of content (14 pages)

PAGE 1
T ECHNICAL INFORMATION Models No. Description PRODUCT P 1/ 14 EM2650UH/ EM2650LH, EM2651UH/ EM2651LH Petrol Brushcutter W CONCEPT AND MAIN APPLICATIONS H These four 25.4mL Petrol Brushcutters have been developed as the successor models of EBH252U/EBH252L and EBH253U/EBH253L equipped with 24.5mL 4-stroke engine. Their main feature is the multi-position engine lubrication system.
PAGE 2
P 2/ 14 Repair CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. [1] NECESSARY REPAIRING TOOLS Code No. 1R004 1R006 1R028 1R031 1R033 1R045 1R127 1R171 1R247 1R282 1R286 1R291 1R364 1R366 Description Retaining ring pliers ST-2 for External ring Retaining ring pliers ST-2 for Internal ring Bearing setting pipe 20-12.2 Bearing setting pipe 28-20.2 Bearing setting plate 10.2 Gear extractor (large) Air density tester T-type hex.
PAGE 3
P 3/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-2. Engine and Shaft Fig. 1 DISASSEMBLING (1) Disconnect lead wire and grounding wire by removing each connector after removal of Air cleaner cover. (Fig. 1) (2) Remove Control cable from Insulator by loosening the adjust screw (Fig. 2) then by the disconnecting inner cable from Swivel of Carburetor. (3) Loosen two M5x18 Hex socket head bolts on Pipe holder and remove M5x12 Hex socket head bolt. (Fig. 3) (4) Pull Shaft pipe complete out of Engine (Pipe holder).
PAGE 4
P 4/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-3. Shaft pipe complete DISASSEMBLING (1) Loosen two M6x30 Hex. socket head bolt (2pcs.) and remove Protector with Protector extension attached. (Fig. 7) (2) Enlarge the space between the side wall of Protector cover and M5x14 Hex socket head bolt, and remove Protector cover from Shaft pipe complete. (Fig. 8) (3) Remove M5x14 Hex socket head bolt with Flat washer and spring washer then remove Protector clamp.
PAGE 5
P 5/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-4. Gear case assembly DISASSEMBLING (1) According to the clause of [4]-3, Remove Gear case assembly. (2) Remove M8x10 + Hex bolt that is the stopper of Grease inlet on Gear case set. (Fig. 13) (3) Remove Retaining ring R-24 with 1R006. (Fig. 14) (4) Remove an assembled part of Spiral bevel gear 14, Ball bearing 609ZZ and Retaining ring S-9 by striking Gear case assembly against workbench as drawn in Fig. 15. (5) Remove Retaining ring S-9 with 1R291.
PAGE 6
P 6/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-5. Clutch Fig. 22 DISASSEMBLING Note: (1) Clutch can be easily removed with Impact driver without holding the piston. (2) Do not remove Spark plug as compressed air resistance has to be used for the disassembling. (3) Plug cap with Plug cap spring has to be removed from Spark plug. • Loosen two M6x25 shoulder hex bolts by turning each bolt counterclockwise using Cordless impact driver with 13mm Socket bit. (Fig.
PAGE 7
P 7/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-7. Ignition Fig. 28 CHECK OF PLUG CAP Plug cap (1) Remove Plug cap from Spark plug, then detect the continuity between Plug cap spring in Plug cap and Earth terminal of Ignition coil. It is the normal condition when Tester shows 2.0kΩ±0.5kΩ. (Fig.
PAGE 8
P 8/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-8. Flywheel DISASSEMBLING Note: • Flywheel can be easily removed without holding the piston. • Do not remove Spark plug as compressed air resistance has to be used for the disassembling. • Plug cap with Plug cap spring has to be removed from Spark plug to prevent Engine from running. (Fig. 29) (1) Turn M8 Flange nut in the center of Flywheel counterclockwise using Cordless impact driver with 13mm Socket bit. (Fig.
PAGE 9
P 9/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-9. Recoil starter DISASSEMBLING (1) Remove Starter case from Engine. (2) Pull out and cut the rope when it is still connected. If it is impossible to cut Starter rope; First, pull the rope one turn of Reel, then, Hook the rope with the notch of Reel and turn the hooked rope clockwise until Spiral spring loses the tension. (Fig. 36) Note: Be careful. Reel is revolved by the recoil force of Spiral spring.
PAGE 10
P 10/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-10. Carburetor DISASSEMBLING (1) Remove Cleaner cover assembly. (Fig. 44) (2) Remove Air cleaner element. (Fig. 45) (3) Remove two M5x60 Hex. socket head bolts for fastening Carburetor and Cleaner plate assembly to Insulator. Note: Carburetor can not removed before the bolts are removed completely. (4) Disconnect two tubes from Carburetor, then remove it. Fig. 45 Fig. 44 Air cleaner element M5x60 Hex. socket button head bolts are completely removed.
PAGE 11
P 11/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-10. Carburetor (cont.) ASSEMBLING Carefully assemble each part in right direction and order. Fig. 50 TEST OF AIRTIGHT STRUCTURE (Nipple to connect yellow tube of Tank) 1R127 Connect 1R127 to the nipple of Carburetor as drawn in Fig. 50. Give air pressure from 1R127 and check if the pressure gauge indicates 0.05Mpa for around 10 seconds, then, there is no problem with Carburetor.
PAGE 12
P 12/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-13. Spark arrester (Only for some countries, i.e., having dry atmospheres at high temperature) MAINTENANCE (1) Remove Cylinder cover. (2) Remove Exhaust Muffler. (3) Remove Spark arrester from Exhaust muffler(Fig. 56). Sweep it off if dirt or soot is on Spark arrester. Replace it wit a new one if spark arrester has a breakage or fray. (4) Assemble Spark arrester to Exhaust muffler. (5) Set Exhaust muffler in place.
PAGE 13
P 13/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-14. Engine block (cont.) ASSEMBLING (1) Piston can be assembled in either direction. Apply Makita grease N No. 2 to the needle bearing of Crank shaft assembly in advance. (2) Insert Piston pin through Piston and Crank shaft, and fix it with Clips by using an awl (Clip has no direction). (3) Piston rings have their directions and each different shapes as drawn in Fig. 60.
PAGE 14
P 14/ 14 Repair [4] DISASSEMBLY/ASSEMBLY [4]-14. Engine block (cont.) ASSEMBLING (6) Adjust the valve clearance as follows: • Align the marking on Flywheel with the marking on Ignition coil. (Fig. 62) • Align the marking on Cam gear assembly with the marking on Cylinder block. (Fig. 63) • Assemble two Cam lifters and two Rod 2.5, and then assemble two Rocker arm assembly to them. Note: The ends of Rod 2.5 have to be put into the round depressions of Cum lifter and Rocker arm.